diff --git a/core/modules/dblog/src/Controller/DbLogController.php b/core/modules/dblog/src/Controller/DbLogController.php
index 2ef2d06..a83b5d7 100644
--- a/core/modules/dblog/src/Controller/DbLogController.php
+++ b/core/modules/dblog/src/Controller/DbLogController.php
@@ -7,8 +7,9 @@
 
 namespace Drupal\dblog\Controller;
 
-use Drupal\Component\Utility\Unicode;
+use Drupal\Component\Utility\SafeMarkup;
 use Drupal\Component\Utility\String;
+use Drupal\Component\Utility\Unicode;
 use Drupal\Component\Utility\Xss;
 use Drupal\Core\Controller\ControllerBase;
 use Drupal\Core\Database\Connection;
@@ -239,6 +240,13 @@ public function eventDetails($event_id) {
         '#theme' => 'username',
         '#account' => user_load($dblog->uid),
       );
+      // Validate the event link if it is safe.
+      if (!SafeMarkup::isSafe($dblog->link)) {
+        $event_link = Xss::filterAdmin($dblog->link);
+      }
+      else {
+        $event_link = SafeMarkup::set($dblog->link);
+      }
       $rows = array(
         array(
           array('data' => $this->t('Type'), 'header' => TRUE),
@@ -254,11 +262,11 @@ public function eventDetails($event_id) {
         ),
         array(
           array('data' => $this->t('Location'), 'header' => TRUE),
-          $this->l($dblog->location, $dblog->location ? Url::fromUri('base://' . $dblog->location) : Url::fromRoute('<none>')),
+          $this->l($dblog->location, (!empty($dblog->location) ? Url::fromUri($dblog->location) : new Url('<front>'))),
         ),
         array(
           array('data' => $this->t('Referrer'), 'header' => TRUE),
-          $this->l($dblog->referer, $dblog->referer ? Url::fromUri('base://' . $dblog->referer) : Url::fromRoute('<none>')),
+          $this->l($dblog->referer, (!empty($dblog->referer) ? Url::fromUri($dblog->referer) : new Url('<front>'))),
         ),
         array(
           array('data' => $this->t('Message'), 'header' => TRUE),
@@ -274,7 +282,7 @@ public function eventDetails($event_id) {
         ),
         array(
           array('data' => $this->t('Operations'), 'header' => TRUE),
-          $dblog->link,
+          $event_link,
         ),
       );
       $build['dblog_table'] = array(
diff --git a/core/modules/dblog/src/Tests/DbLogTest.php b/core/modules/dblog/src/Tests/DbLogTest.php
index 8f334d8..5e3e01b 100644
--- a/core/modules/dblog/src/Tests/DbLogTest.php
+++ b/core/modules/dblog/src/Tests/DbLogTest.php
@@ -10,6 +10,7 @@
 use Drupal\Component\Utility\Unicode;
 use Drupal\Component\Utility\Xss;
 use Drupal\Core\Logger\RfcLogLevel;
+use Drupal\Core\Url;
 use Drupal\dblog\Controller\DbLogController;
 use Drupal\simpletest\WebTestBase;
 
@@ -67,6 +68,8 @@ function testDbLog() {
     $this->verifyEvents();
     $this->verifyReports();
     $this->verifyBreadcrumbs();
+    $this->verifyLinkEscaping();
+
     // Verify the overview table sorting.
     $orders = array('Date', 'Type', 'User');
     $sorts = array('asc', 'desc');
@@ -148,10 +151,18 @@ private function generateLogEntries($count, $type = 'custom', $severity = RfcLog
       'ip'          => '127.0.0.1',
       'timestamp'   => REQUEST_TIME,
       );
-    $message = 'Log entry added to test the dblog row limit. Entry #';
-    for ($i = 0; $i < $count; $i++) {
-      $log['message'] = $message . $i;
-      $this->container->get('logger.dblog')->log($severity, $log['message'], $log);
+
+    if ($count > 1) {
+      $row_message = $log['message'] . ' Entry #';
+      for ($i = 0; $i < $count; $i++) {
+        $log['message'] = $row_message . $i;
+        $this->container->get('logger.dblog')
+          ->log($log['severity'], $log['message'], $log);
+      }
+    }
+    else {
+      $this->container->get('logger.dblog')
+        ->log($log['severity'], $log['message'], $log);
     }
   }
 
@@ -243,6 +254,43 @@ public function verifySort($sort = 'asc', $order = 'Date') {
   }
 
   /**
+   * Test the escaping of links in the operation row of a database log detail
+   * page.
+   */
+  private function verifyLinkEscaping() {
+    $link = \Drupal::l('View', Url::fromRoute('entity.node.canonical', array('node' => 1)));
+    $message = 'Log entry added to do the verifyLinkEscaping test.';
+    $this->generateLogEntries(1, array(
+      'message' => $message,
+      'link' => $link,
+    ));
+
+    $result = db_query_range('SELECT wid FROM {watchdog} ORDER BY wid DESC', 0, 1);
+    $this->drupalGet('admin/reports/dblog/event/' . $result->fetchField());
+
+    // Check if the link exists (unescaped).
+    $this->assertRaw($link);
+
+    // Check for XSS filtering
+    $js_txt = 'This should not pop up!';
+    $js = '<script>alert("' . $js_txt . '");</script>';
+      $this->generateLogEntries(1, array(
+      'message' => $message,
+      'link' => $link . $js,
+    ));
+
+    $result = db_query_range('SELECT wid FROM {watchdog} ORDER BY wid DESC', 0, 1);
+    $this->drupalGet('admin/reports/dblog/event/' . $result->fetchField());
+
+    // Check if the link exists (unescaped).
+    $this->assertRaw($link);
+
+    // Check if javascript was escaped
+    $this->assertNoRaw($js, 'Detail view: javascript in link is blocked');
+    $this->assertRaw($js_txt, 'Detail view: javascript text exists ');
+  }
+
+  /**
    * Generates and then verifies some user events.
    */
   private function doUser() {
@@ -493,7 +541,10 @@ protected function testFilter() {
           'type' => $type_name,
           'severity' => $severity++,
         );
-        $this->generateLogEntries($type['count'], $type['type'], $type['severity']);
+        $this->generateLogEntries($type['count'], array(
+          'channel' => $type['type'],
+          'severity' => $type['severity'],
+        ));
       }
     }